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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7523) Setting a socket receive buffer size in DFSClient
Date Fri, 19 Dec 2014 01:14:13 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14252714#comment-14252714

Hadoop QA commented on HDFS-7523:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision b0b9084.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:red}-1 findbugs{color}.  The patch appears to introduce 1 new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs:


                                      The following test timeouts occurred in hadoop-hdfs-project/hadoop-hdfs:


Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/9080//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HDFS-Build/9080//artifact/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9080//console

This message is automatically generated.

> Setting a socket receive buffer size in DFSClient
> -------------------------------------------------
>                 Key: HDFS-7523
>                 URL: https://issues.apache.org/jira/browse/HDFS-7523
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: dfsclient
>    Affects Versions: 2.6.0
>            Reporter: Liang Xie
>            Assignee: Liang Xie
>         Attachments: HDFS-7523-001.txt, HDFS-7523-001.txt
> It would be nice if we have a socket receive buffer size while creating socket from client(HBase)
view, in old version it should be in DFSInputStream, in trunk it seems should be at:
> {code}
>   @Override // RemotePeerFactory
>   public Peer newConnectedPeer(InetSocketAddress addr,
>       Token<BlockTokenIdentifier> blockToken, DatanodeID datanodeId)
>       throws IOException {
>     Peer peer = null;
>     boolean success = false;
>     Socket sock = null;
>     try {
>       sock = socketFactory.createSocket();
>       NetUtils.connect(sock, addr,
>         getRandomLocalInterfaceAddr(),
>         dfsClientConf.socketTimeout);
>       peer = TcpPeerServer.peerFromSocketAndKey(saslClient, sock, this,
>           blockToken, datanodeId);
>       peer.setReadTimeout(dfsClientConf.socketTimeout);
> {code}
> e.g: sock.setReceiveBufferSize(HdfsConstants.DEFAULT_DATA_SOCKET_SIZE);
> the default socket buffer size in Linux+JDK7 seems is 8k if i am not wrong, this value
sometimes is small for HBase 64k block reading in a 10G network(at least, more system call)

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